{"id":66270,"date":"2025-05-03T13:17:05","date_gmt":"2025-05-03T05:17:05","guid":{"rendered":"https:\/\/fwq.ai\/blog\/66270\/"},"modified":"2025-05-03T13:17:05","modified_gmt":"2025-05-03T05:17:05","slug":"java%e4%b8%ad%e6%80%8e%e4%b9%88%e7%94%a8%e5%88%b0%e6%95%b0%e7%bb%84%e9%87%8c%e7%9a%84%e6%95%b0-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/66270\/","title":{"rendered":"Java\u4e2d\u600e\u4e48\u7528\u5230\u6570\u7ec4\u91cc\u7684\u6570"},"content":{"rendered":"

\n java \u4e2d\u6570\u7ec4\u4e2d\u7684\u6570\u5b57\u53ef\u4ee5\u5206\u516d\u6b65\u4f7f\u7528\uff1a1. \u58f0\u660e\u548c\u521d\u59cb\u5316\u6570\u7ec4\uff1b2. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1b3. \u904d\u5386\u6570\u7ec4\uff1b4. \u67e5\u627e\u6570\u7ec4\u4e2d\u7684\u503c\uff1b5. \u6392\u5e8f\u6570\u7ec4\uff1b6. \u590d\u5236\u6570\u7ec4\u3002\n<\/p><\/blockquote>\n

\"Java\u4e2d\u600e\u4e48\u7528\u5230\u6570\u7ec4\u91cc\u7684\u6570\u63d2\u56fe\"<\/p>\n

\u5982\u4f55\u4f7f\u7528 Java \u4e2d\u6570\u7ec4\u4e2d\u7684\u6570<\/strong><\/p>\n

\u6570\u7ec4\u662f Java \u4e2d\u7684\u6709\u5e8f\u5143\u7d20\u96c6\u5408\u3002\u5b83\u4eec\u53ef\u4ee5\u5b58\u50a8\u5404\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u6570\u5b57\u3002\u8981\u4f7f\u7528\u6570\u7ec4\u4e2d\u7684\u6570\u5b57\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n

1. \u58f0\u660e\u548c\u521d\u59cb\u5316\u6570\u7ec4<\/strong><\/p>\n

\u9996\u5148\uff0c\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u5e76\u6307\u5b9a\u5176\u5143\u7d20\u7c7b\u578b\u548c\u957f\u5ea6\u3002\u4f8b\u5982\uff1a<\/p>\n

\u7acb\u5373\u5b66\u4e60<\/span>\u201c\u201d\uff1b<\/p>\n

int[] numbers = {1, 2, 3, 4, 5};<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
2. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20<\/strong><\/p>\n
\u8981\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u56e0\u6b64\u8981\u8bbf\u95ee\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u4f7f\u7528 numbers[0]\u3002\u4f8b\u5982\uff1a<\/p>\n
int firstNumber = numbers[0]; \/\/ 1<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
3. \u904d\u5386\u6570\u7ec4<\/strong><\/p>\n
\u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002\u4f8b\u5982\uff1a<\/p>\n
for (int number : numbers) {\n  System.out.println(number);\n}\n\n\/\/ \u8f93\u51fa\uff1a\n\/\/ 1\n\/\/ 2\n\/\/ 3\n\/\/ 4\n\/\/ 5<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
4. \u67e5\u627e\u6570\u7ec4\u4e2d\u7684\u503c<\/strong><\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528 indexOf() \u65b9\u6cd5\u5728\u6570\u7ec4\u4e2d\u67e5\u627e\u7279\u5b9a\u503c\u3002\u4f8b\u5982\uff1a<\/p>\n
int index = Arrays.indexOf(numbers, 3); \/\/ 2<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
5. \u6392\u5e8f\u6570\u7ec4<\/strong><\/p>\n
\u53ef\u4ee5\u4f7f\u7528 Arrays.sort() \u65b9\u6cd5\u5bf9\u6570\u7ec4\u4e2d\u7684\u6570\u5b57\u8fdb\u884c\u6392\u5e8f\u3002\u4f8b\u5982\uff1a<\/p>\n
Arrays.sort(numbers); \/\/ \u6392\u5e8f\u6570\u7ec4\n\n\/\/ \u8f93\u51fa\uff1a\n\/\/ [1, 2, 3, 4, 5]<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
6. \u590d\u5236\u6570\u7ec4<\/strong><\/p>\n
\u53ef\u4ee5\u4f7f\u7528 Arrays.copyOf() \u65b9\u6cd5\u4ece\u4e00\u4e2a\u6570\u7ec4\u590d\u5236\u5143\u7d20\u5230\u53e6\u4e00\u4e2a\u6570\u7ec4\u3002\u4f8b\u5982\uff1a<\/p>\n
int[] copy = Arrays.copyOf(numbers, numbers.length);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u6570\u7ec4\u5728 Java \u4e2d\u662f\u5f3a\u5927\u7684\u5de5\u5177\uff0c\u53ef\u7528\u4e8e\u5b58\u50a8\u548c\u64cd\u4f5c\u4e00\u7cfb\u5217\u6570\u5b57\u3002\u901a\u8fc7\u9075\u5faa\u8fd9\u4e9b\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u8f7b\u677e\u5730\u8bbf\u95ee\u548c\u4f7f\u7528\u8fd9\u4e9b\u6570\u5b57\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662fJava\u4e2d\u600e\u4e48\u7528\u5230\u6570\u7ec4\u91cc\u7684\u6570\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8IDCBABY\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
java \u4e2d\u6570\u7ec4\u4e2d\u7684\u6570\u5b57\u53ef\u4ee5\u5206\u516d\u6b65\u4f7f\u7528\uff1a1. \u58f0\u660e\u548c\u521d\u59cb\u5316\u6570\u7ec4\uff1b2. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20\uff1b3. \u904d\u5386\u6570\u7ec4\uff1b4. \u67e5\u627e\u6570\u7ec4\u4e2d\u7684\u503c\uff1b5. \u6392\u5e8f\u6570\u7ec4\uff1b6. \u590d\u5236\u6570\u7ec4\u3002 \u5982\u4f55\u4f7f\u7528 Java \u4e2d\u6570\u7ec4\u4e2d\u7684\u6570 \u6570\u7ec4\u662f Java \u4e2d\u7684\u6709\u5e8f\u5143\u7d20\u96c6\u5408\u3002\u5b83\u4eec\u53ef\u4ee5\u5b58\u50a8\u5404\u79cd\u6570\u636e\u7c7b\u578b\uff0c\u5305\u62ec\u6570\u5b57\u3002\u8981\u4f7f\u7528\u6570\u7ec4\u4e2d\u7684\u6570\u5b57\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u6b65\u9aa4\uff1a 1. \u58f0\u660e\u548c\u521d\u59cb\u5316\u6570\u7ec4 \u9996\u5148\uff0c\u58f0\u660e\u4e00\u4e2a\u6570\u7ec4\u5e76\u6307\u5b9a\u5176\u5143\u7d20\u7c7b\u578b\u548c\u957f\u5ea6\u3002\u4f8b\u5982\uff1a \u7acb\u5373\u5b66\u4e60\u201c\u201d\uff1b int[] numbers = {1, 2, 3, 4, 5}; \u767b\u5f55\u540e\u590d\u5236 2. \u8bbf\u95ee\u6570\u7ec4\u5143\u7d20 \u8981\u8bbf\u95ee\u7279\u5b9a\u5143\u7d20\uff0c\u8bf7\u4f7f\u7528\u6570\u7ec4\u7d22\u5f15\u3002\u7d22\u5f15\u4ece 0 \u5f00\u59cb\uff0c\u56e0\u6b64\u8981\u8bbf\u95ee\u7b2c\u4e00\u4e2a\u5143\u7d20\uff0c\u4f7f\u7528 numbers[0]\u3002\u4f8b\u5982\uff1a int firstNumber = numbers[0]; \/\/ 1 \u767b\u5f55\u540e\u590d\u5236 3. \u904d\u5386\u6570\u7ec4 \u53ef\u4ee5\u4f7f\u7528 for \u5faa\u73af\u904d\u5386\u6570\u7ec4\u4e2d\u7684\u6240\u6709\u5143\u7d20\u3002\u4f8b\u5982\uff1a for (int number : numbers) { System.out.println(number); } \/\/ \u8f93\u51fa\uff1a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-66270","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66270","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=66270"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/66270\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=66270"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=66270"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=66270"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}